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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
94 lines
1.8 KiB
C
94 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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*
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* Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
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* Author: Fuxin Zhang, zhangfx@lemote.com
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* Copyright (C) 2009 Lemote, Inc.
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* Author: Zhangjin Wu, wuzhangjin@gmail.com
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*/
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#include <linux/init.h>
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#include <linux/pm.h>
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#include <asm/idle.h>
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#include <asm/reboot.h>
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#include <loongson.h>
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#include <boot_param.h>
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static inline void loongson_reboot(void)
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{
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#ifndef CONFIG_CPU_JUMP_WORKAROUNDS
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((void (*)(void))ioremap_nocache(LOONGSON_BOOT_BASE, 4)) ();
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#else
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void (*func)(void);
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func = (void *)ioremap_nocache(LOONGSON_BOOT_BASE, 4);
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__asm__ __volatile__(
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" .set noat \n"
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" jr %[func] \n"
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" .set at \n"
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: /* No outputs */
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: [func] "r" (func));
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#endif
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}
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static void loongson_restart(char *command)
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{
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#ifndef CONFIG_LEFI_FIRMWARE_INTERFACE
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/* do preparation for reboot */
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mach_prepare_reboot();
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/* reboot via jumping to boot base address */
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loongson_reboot();
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#else
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void (*fw_restart)(void) = (void *)loongson_sysconf.restart_addr;
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fw_restart();
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while (1) {
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if (cpu_wait)
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cpu_wait();
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}
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#endif
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}
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static void loongson_poweroff(void)
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{
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#ifndef CONFIG_LEFI_FIRMWARE_INTERFACE
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mach_prepare_shutdown();
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/*
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* It needs a wait loop here, but mips/kernel/reset.c already calls
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* a generic delay loop, machine_hang(), so simply return.
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*/
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return;
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#else
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void (*fw_poweroff)(void) = (void *)loongson_sysconf.poweroff_addr;
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fw_poweroff();
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while (1) {
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if (cpu_wait)
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cpu_wait();
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}
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#endif
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}
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static void loongson_halt(void)
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{
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pr_notice("\n\n** You can safely turn off the power now **\n\n");
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while (1) {
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if (cpu_wait)
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cpu_wait();
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}
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}
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static int __init mips_reboot_setup(void)
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{
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_machine_restart = loongson_restart;
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_machine_halt = loongson_halt;
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pm_power_off = loongson_poweroff;
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return 0;
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}
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arch_initcall(mips_reboot_setup);
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